backbone-bucket 0.2.1

//! Commands for FileVersion aggregate
//!
//! Generated by backbone-schema. Do not edit manually.
//!
//! CQRS Commands represent intent to change state.

use async_trait::async_trait;
use anyhow::Result;
use serde::{Deserialize, Serialize};
use uuid::Uuid;

use crate::domain::entity::{FileVersion, FileVersionStatus};
use crate::infrastructure::persistence::FileVersionRepository;
use super::CommandHandler;

// ============================================================================
// COMMAND TRAIT (DEPRECATED)
// ============================================================================

/// Command trait for FileVersion operations
///
/// **DEPRECATED**: Use the generic `CommandHandler<C>` trait from `mod.rs` instead.
/// This trait is kept for backwards compatibility.
#[deprecated(since = "0.2.0", note = "Use CommandHandler<C> trait instead")]
#[async_trait]
pub trait FileVersionCommand: Send + Sync {
    type Output;
    async fn execute(&self) -> Result<Self::Output>;
}

// ============================================================================
// CREATE COMMAND
// ============================================================================

/// Command to create a new file_version
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CreateFileVersionCommand {
    pub file_id: Uuid,
    pub version_number: i32,
    pub version_type: VersionType,
    pub storage_key: String,
    pub storage_backend: String,
    pub name: String,
    pub mime_type: String,
    pub checksum_md5: Option<String>,
    pub checksum_sha256: Option<String>,
    pub created_by_id: Uuid,
    pub change_summary: Option<String>,
    pub is_current: bool,
    pub restored_from_id: Option<Uuid>,
    pub expires_at: Option<DateTime<Utc>>,
    pub status: FileVersionStatus,
    pub size_bytes: i64,
    pub metadata: serde_json::Value,
}

/// Handler for CreateFileVersionCommand
pub struct CreateFileVersionHandler<R: FileVersionRepository> {
    repository: std::sync::Arc<R>,
}

impl<R: FileVersionRepository> CreateFileVersionHandler<R> {
    pub fn new(repository: std::sync::Arc<R>) -> Self {
        Self { repository }
    }
}

#[async_trait]
impl<R: FileVersionRepository + 'static> CommandHandler<CreateFileVersionCommand> for CreateFileVersionHandler<R> {
    type Output = FileVersion;

    async fn handle(&self, cmd: CreateFileVersionCommand) -> Result<Self::Output> {
        let entity = FileVersion::builder()
            .id(Uuid::new_v4().to_string())
            .file_id(cmd.file_id)
            .version_number(cmd.version_number)
            .version_type(cmd.version_type)
            .storage_key(cmd.storage_key)
            .storage_backend(cmd.storage_backend)
            .name(cmd.name)
            .mime_type(cmd.mime_type)
            .checksum_md5(cmd.checksum_md5)
            .checksum_sha256(cmd.checksum_sha256)
            .created_by_id(cmd.created_by_id)
            .change_summary(cmd.change_summary)
            .is_current(cmd.is_current)
            .restored_from_id(cmd.restored_from_id)
            .expires_at(cmd.expires_at)
            .status(cmd.status)
            .size_bytes(cmd.size_bytes)
            .metadata(cmd.metadata)
            .build()?;

        self.repository.save(&entity).await
    }
}

// ============================================================================
// UPDATE COMMAND
// ============================================================================

/// Command to update an existing file_version
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct UpdateFileVersionCommand {
    pub id: String,
    pub file_id: Option<Uuid>,
    pub version_number: Option<i32>,
    pub version_type: Option<VersionType>,
    pub storage_key: Option<String>,
    pub storage_backend: Option<String>,
    pub name: Option<String>,
    pub mime_type: Option<String>,
    pub checksum_md5: Option<String>,
    pub checksum_sha256: Option<String>,
    pub created_by_id: Option<Uuid>,
    pub change_summary: Option<String>,
    pub is_current: Option<bool>,
    pub restored_from_id: Option<Uuid>,
    pub expires_at: Option<DateTime<Utc>>,
    pub status: Option<FileVersionStatus>,
    pub size_bytes: Option<i64>,
    pub metadata: Option<serde_json::Value>,
}

/// Handler for UpdateFileVersionCommand
pub struct UpdateFileVersionHandler<R: FileVersionRepository> {
    repository: std::sync::Arc<R>,
}

impl<R: FileVersionRepository> UpdateFileVersionHandler<R> {
    pub fn new(repository: std::sync::Arc<R>) -> Self {
        Self { repository }
    }
}

#[async_trait]
impl<R: FileVersionRepository + 'static> CommandHandler<UpdateFileVersionCommand> for UpdateFileVersionHandler<R> {
    type Output = Option<FileVersion>;

    async fn handle(&self, cmd: UpdateFileVersionCommand) -> Result<Self::Output> {
        let existing = self.repository.find_by_id(&cmd.id).await?;

        let Some(mut entity) = existing else {
            return Ok(None);
        };

        // Apply updates
        if let Some(value) = cmd.file_id {
            entity.file_id = value;
        }
        if let Some(value) = cmd.version_number {
            entity.version_number = value;
        }
        if let Some(value) = cmd.version_type {
            entity.version_type = value;
        }
        if let Some(value) = cmd.storage_key {
            entity.storage_key = value;
        }
        if let Some(value) = cmd.storage_backend {
            entity.storage_backend = value;
        }
        if let Some(value) = cmd.name {
            entity.name = value;
        }
        if let Some(value) = cmd.mime_type {
            entity.mime_type = value;
        }
        entity.checksum_md5 = cmd.checksum_md5;
        entity.checksum_sha256 = cmd.checksum_sha256;
        if let Some(value) = cmd.created_by_id {
            entity.created_by_id = value;
        }
        entity.change_summary = cmd.change_summary;
        if let Some(value) = cmd.is_current {
            entity.is_current = value;
        }
        entity.restored_from_id = cmd.restored_from_id;
        entity.expires_at = cmd.expires_at;
        if let Some(value) = cmd.status {
            entity.status = value;
        }
        if let Some(value) = cmd.size_bytes {
            entity.size_bytes = value;
        }
        if let Some(value) = cmd.metadata {
            entity.metadata = value;
        }

        self.repository.update(&cmd.id, &entity).await
    }
}

// ============================================================================
// DELETE COMMAND
// ============================================================================

/// Command to delete a file_version
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DeleteFileVersionCommand {
    pub id: String,
    pub hard_delete: bool,
}

/// Handler for DeleteFileVersionCommand
pub struct DeleteFileVersionHandler<R: FileVersionRepository> {
    repository: std::sync::Arc<R>,
}

impl<R: FileVersionRepository> DeleteFileVersionHandler<R> {
    pub fn new(repository: std::sync::Arc<R>) -> Self {
        Self { repository }
    }
}

#[async_trait]
impl<R: FileVersionRepository + 'static> CommandHandler<DeleteFileVersionCommand> for DeleteFileVersionHandler<R> {
    type Output = bool;

    async fn handle(&self, cmd: DeleteFileVersionCommand) -> Result<Self::Output> {
        if cmd.hard_delete {
            self.repository.delete(&cmd.id).await
        } else {
            self.repository.soft_delete(&cmd.id).await
        }
    }
}

// ============================================================================
// CUSTOM COMMANDS
// ============================================================================
// <<< CUSTOM COMMANDS START >>>

// <<< CUSTOM COMMANDS START >>>
// Add your custom commands here
// Example:
//
// #[derive(Debug, Clone, Serialize, Deserialize)]
// pub struct ActivateFileVersionCommand {
//     pub id: String,
// }
// <<< CUSTOM COMMANDS END >>>